a = '1234567890'
b = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'
passwd = input("请输入密码：")
length = len(passwd)
while (passwd.isspace()) or (length == 0):
	print("输入为空，请重新输入：")
	passwd = input('请输入密码：')
	length = len(passwd)
if length <= 8:
	  level = 1
else:
	  level = 2
temp = 0
for each in passwd:
	if each in a:
		temp += 1
		break
for each in passwd:
	if each in b:
		temp += 1
		break
print('密码等级为：', end='')
if level ==1 or temp == 1:
	print('低')
elif level == 2 or temp == 2:
	print('高')

